| 摘要 |
A search device, search system and search method according to the present invention are adapted to extract related words of entered keyword from a related word dictionary file, to display one or more of the related words in a manner to accept selection, to perform search using selected related word keyword including desired number of the related word, and to display a search result. Furthermore, a search device is adapted to retrieve related words of entered keywords extracted from a related word dictionary file and to obtain search result using related word key word including selected related words from the obtained one more related words.
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